dlls/ntdll/reg.c

   1 /*
   2  * Registry functions
   3  *
   4  * Copyright (C) 1999 Juergen Schmied
   5  * Copyright (C) 2000 Alexandre Julliard
   6  * Copyright 2005 Ivan Leo Puoti, Laurent Pinchart
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  * NOTES:
  23  *      HKEY_LOCAL_MACHINE      \\REGISTRY\\MACHINE
  24  *      HKEY_USERS              \\REGISTRY\\USER
  25  *      HKEY_CURRENT_CONFIG     \\REGISTRY\\MACHINE\\SYSTEM\\CURRENTCONTROLSET\\HARDWARE PROFILES\\CURRENT
  26   *     HKEY_CLASSES            \\REGISTRY\\MACHINE\\SOFTWARE\\CLASSES
  27  */
  28
  29 #include "config.h"
  30 #include "wine/port.h"
  31
  32 #include <stdarg.h>
  33 #include <stdio.h>
  34 #include <string.h>
  35
  36 #include "wine/library.h"
  37 #include "ntdll_misc.h"
  38 #include "wine/debug.h"
  39 #include "wine/unicode.h"
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(reg);
  42
  43 /* maximum length of a key/value name in bytes (without terminating null) */
  44 #define MAX_NAME_LENGTH ((MAX_PATH-1) * sizeof(WCHAR))
  45
  46 /******************************************************************************
  47  * NtCreateKey [NTDLL.@]
  48  * ZwCreateKey [NTDLL.@]
  49  */
  50 NTSTATUS WINAPI NtCreateKey( PHANDLE retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr,
  51                              ULONG TitleIndex, const UNICODE_STRING *class, ULONG options,
  52                              PULONG dispos )
  53 {
  54     NTSTATUS ret;
  55
  56     TRACE( "(%p,%s,%s,%lx,%lx,%p)\n", attr->RootDirectory, debugstr_us(attr->ObjectName),
  57            debugstr_us(class), options, access, retkey );
  58
  59     if (attr->ObjectName->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
  60     if (!retkey) return STATUS_INVALID_PARAMETER;
  61
  62     SERVER_START_REQ( create_key )
  63     {
  64         req->parent  = attr->RootDirectory;
  65         req->access  = access;
  66         req->options = options;
  67         req->modif   = 0;
  68         req->namelen = attr->ObjectName->Length;
  69         wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
  70         if (class) wine_server_add_data( req, class->Buffer, class->Length );
  71         if (!(ret = wine_server_call( req )))
  72         {
  73             *retkey = reply->hkey;
  74             if (dispos) *dispos = reply->created ? REG_CREATED_NEW_KEY : REG_OPENED_EXISTING_KEY;
  75         }
  76     }
  77     SERVER_END_REQ;
  78     TRACE("<- %p\n", *retkey);
  79     return ret;
  80 }
  81
  82 /******************************************************************************
  83  *  RtlpNtCreateKey [NTDLL.@]
  84  *
  85  *  See NtCreateKey.
  86  */
  87 NTSTATUS WINAPI RtlpNtCreateKey( PHANDLE retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr,
  88                                  ULONG TitleIndex, const UNICODE_STRING *class, ULONG options,
  89                                  PULONG dispos )
  90 {
  91     OBJECT_ATTRIBUTES oa;
  92
  93     if (attr)
  94     {
  95         memcpy( &oa, attr, sizeof oa );
  96         oa.Attributes &= ~(OBJ_PERMANENT|OBJ_EXCLUSIVE);
  97         attr = &oa;
  98     }
  99
 100     return NtCreateKey(retkey, access, attr, 0, NULL, 0, dispos);
 101 }
 102
 103 /******************************************************************************
 104  * NtOpenKey [NTDLL.@]
 105  * ZwOpenKey [NTDLL.@]
 106  *
 107  *   OUT        HANDLE                  retkey (returns 0 when failure)
 108  *   IN         ACCESS_MASK             access
 109  *   IN         POBJECT_ATTRIBUTES      attr
 110  */
 111 NTSTATUS WINAPI NtOpenKey( PHANDLE retkey, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
 112 {
 113     NTSTATUS ret;
 114     DWORD len = attr->ObjectName->Length;
 115
 116     TRACE( "(%p,%s,%lx,%p)\n", attr->RootDirectory,
 117            debugstr_us(attr->ObjectName), access, retkey );
 118
 119     if (len > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 120     if (!retkey) return STATUS_INVALID_PARAMETER;
 121
 122     SERVER_START_REQ( open_key )
 123     {
 124         req->parent = attr->RootDirectory;
 125         req->access = access;
 126         wine_server_add_data( req, attr->ObjectName->Buffer, len );
 127         ret = wine_server_call( req );
 128         *retkey = reply->hkey;
 129     }
 130     SERVER_END_REQ;
 131     TRACE("<- %p\n", *retkey);
 132     return ret;
 133 }
 134
 135 /******************************************************************************
 136  * RtlpNtOpenKey [NTDLL.@]
 137  *
 138  * See NtOpenKey.
 139  */
 140 NTSTATUS WINAPI RtlpNtOpenKey( PHANDLE retkey, ACCESS_MASK access, OBJECT_ATTRIBUTES *attr )
 141 {
 142     if (attr)
 143         attr->Attributes &= ~(OBJ_PERMANENT|OBJ_EXCLUSIVE);
 144     return NtOpenKey(retkey, access, attr);
 145 }
 146
 147 /******************************************************************************
 148  * NtDeleteKey [NTDLL.@]
 149  * ZwDeleteKey [NTDLL.@]
 150  */
 151 NTSTATUS WINAPI NtDeleteKey( HANDLE hkey )
 152 {
 153     NTSTATUS ret;
 154
 155     TRACE( "(%p)\n", hkey );
 156
 157     SERVER_START_REQ( delete_key )
 158     {
 159         req->hkey = hkey;
 160         ret = wine_server_call( req );
 161     }
 162     SERVER_END_REQ;
 163     return ret;
 164 }
 165
 166 /******************************************************************************
 167  * RtlpNtMakeTemporaryKey [NTDLL.@]
 168  *
 169  *  See NtDeleteKey.
 170  */
 171 NTSTATUS WINAPI RtlpNtMakeTemporaryKey( HANDLE hkey )
 172 {
 173     return NtDeleteKey(hkey);
 174 }
 175
 176 /******************************************************************************
 177  * NtDeleteValueKey [NTDLL.@]
 178  * ZwDeleteValueKey [NTDLL.@]
 179  */
 180 NTSTATUS WINAPI NtDeleteValueKey( HANDLE hkey, const UNICODE_STRING *name )
 181 {
 182     NTSTATUS ret;
 183
 184     TRACE( "(%p,%s)\n", hkey, debugstr_us(name) );
 185     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 186
 187     SERVER_START_REQ( delete_key_value )
 188     {
 189         req->hkey = hkey;
 190         wine_server_add_data( req, name->Buffer, name->Length );
 191         ret = wine_server_call( req );
 192     }
 193     SERVER_END_REQ;
 194     return ret;
 195 }
 196
 197
 198 /******************************************************************************
 199  *     enumerate_key
 200  *
 201  * Implementation of NtQueryKey and NtEnumerateKey
 202  */
 203 static NTSTATUS enumerate_key( HANDLE handle, int index, KEY_INFORMATION_CLASS info_class,
 204                                void *info, DWORD length, DWORD *result_len )
 205
 206 {
 207     NTSTATUS ret;
 208     void *data_ptr;
 209     size_t fixed_size;
 210
 211     switch(info_class)
 212     {
 213     case KeyBasicInformation: data_ptr = ((KEY_BASIC_INFORMATION *)info)->Name; break;
 214     case KeyFullInformation:  data_ptr = ((KEY_FULL_INFORMATION *)info)->Class; break;
 215     case KeyNodeInformation:  data_ptr = ((KEY_NODE_INFORMATION *)info)->Name;  break;
 216     default:
 217         FIXME( "Information class %d not implemented\n", info_class );
 218         return STATUS_INVALID_PARAMETER;
 219     }
 220     fixed_size = (char *)data_ptr - (char *)info;
 221
 222     SERVER_START_REQ( enum_key )
 223     {
 224         req->hkey       = handle;
 225         req->index      = index;
 226         req->info_class = info_class;
 227         if (length > fixed_size) wine_server_set_reply( req, data_ptr, length - fixed_size );
 228         if (!(ret = wine_server_call( req )))
 229         {
 230             LARGE_INTEGER modif;
 231
 232             RtlSecondsSince1970ToTime( reply->modif, &modif );
 233
 234             switch(info_class)
 235             {
 236             case KeyBasicInformation:
 237                 {
 238                     KEY_BASIC_INFORMATION keyinfo;
 239                     fixed_size = (char *)keyinfo.Name - (char *)&keyinfo;
 240                     keyinfo.LastWriteTime = modif;
 241                     keyinfo.TitleIndex = 0;
 242                     keyinfo.NameLength = reply->namelen;
 243                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 244                 }
 245                 break;
 246             case KeyFullInformation:
 247                 {
 248                     KEY_FULL_INFORMATION keyinfo;
 249                     fixed_size = (char *)keyinfo.Class - (char *)&keyinfo;
 250                     keyinfo.LastWriteTime = modif;
 251                     keyinfo.TitleIndex = 0;
 252                     keyinfo.ClassLength = wine_server_reply_size(reply);
 253                     keyinfo.ClassOffset = keyinfo.ClassLength ? fixed_size : -1;
 254                     keyinfo.SubKeys = reply->subkeys;
 255                     keyinfo.MaxNameLen = reply->max_subkey;
 256                     keyinfo.MaxClassLen = reply->max_class;
 257                     keyinfo.Values = reply->values;
 258                     keyinfo.MaxValueNameLen = reply->max_value;
 259                     keyinfo.MaxValueDataLen = reply->max_data;
 260                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 261                 }
 262                 break;
 263             case KeyNodeInformation:
 264                 {
 265                     KEY_NODE_INFORMATION keyinfo;
 266                     fixed_size = (char *)keyinfo.Name - (char *)&keyinfo;
 267                     keyinfo.LastWriteTime = modif;
 268                     keyinfo.TitleIndex = 0;
 269                     keyinfo.ClassLength = max( 0, wine_server_reply_size(reply) - reply->namelen );
 270                     keyinfo.ClassOffset = keyinfo.ClassLength ? fixed_size + reply->namelen : -1;
 271                     keyinfo.NameLength = reply->namelen;
 272                     memcpy( info, &keyinfo, min( length, fixed_size ) );
 273                 }
 274                 break;
 275             }
 276             *result_len = fixed_size + reply->total;
 277             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 278         }
 279     }
 280     SERVER_END_REQ;
 281     return ret;
 282 }
 283
 284
 285
 286 /******************************************************************************
 287  * NtEnumerateKey [NTDLL.@]
 288  * ZwEnumerateKey [NTDLL.@]
 289  *
 290  * NOTES
 291  *  the name copied into the buffer is NOT 0-terminated
 292  */
 293 NTSTATUS WINAPI NtEnumerateKey( HANDLE handle, ULONG index, KEY_INFORMATION_CLASS info_class,
 294                                 void *info, DWORD length, DWORD *result_len )
 295 {
 296     /* -1 means query key, so avoid it here */
 297     if (index == (ULONG)-1) return STATUS_NO_MORE_ENTRIES;
 298     return enumerate_key( handle, index, info_class, info, length, result_len );
 299 }
 300
 301
 302 /******************************************************************************
 303  * RtlpNtEnumerateSubKey [NTDLL.@]
 304  *
 305  */
 306 NTSTATUS WINAPI RtlpNtEnumerateSubKey( HANDLE handle, UNICODE_STRING *out, ULONG index )
 307 {
 308   KEY_BASIC_INFORMATION *info;
 309   DWORD dwLen, dwResultLen;
 310   NTSTATUS ret;
 311
 312   if (out->Length)
 313   {
 314     dwLen = out->Length + sizeof(KEY_BASIC_INFORMATION);
 315     info = (KEY_BASIC_INFORMATION*)RtlAllocateHeap( GetProcessHeap(), 0, dwLen );
 316     if (!info)
 317       return STATUS_NO_MEMORY;
 318   }
 319   else
 320   {
 321     dwLen = 0;
 322     info = NULL;
 323   }
 324
 325   ret = NtEnumerateKey( handle, index, KeyBasicInformation, info, dwLen, &dwResultLen );
 326   dwResultLen -= sizeof(KEY_BASIC_INFORMATION);
 327
 328   if (ret == STATUS_BUFFER_OVERFLOW)
 329     out->Length = dwResultLen;
 330   else if (!ret)
 331   {
 332     if (out->Length < info->NameLength)
 333     {
 334       out->Length = dwResultLen;
 335       ret = STATUS_BUFFER_OVERFLOW;
 336     }
 337     else
 338     {
 339       out->Length = info->NameLength;
 340       memcpy(out->Buffer, info->Name, info->NameLength);
 341     }
 342   }
 343
 344   if (info)
 345     RtlFreeHeap( GetProcessHeap(), 0, info );
 346   return ret;
 347 }
 348
 349 /******************************************************************************
 350  * NtQueryKey [NTDLL.@]
 351  * ZwQueryKey [NTDLL.@]
 352  */
 353 NTSTATUS WINAPI NtQueryKey( HANDLE handle, KEY_INFORMATION_CLASS info_class,
 354                             void *info, DWORD length, DWORD *result_len )
 355 {
 356     return enumerate_key( handle, -1, info_class, info, length, result_len );
 357 }
 358
 359
 360 /* fill the key value info structure for a specific info class */
 361 static void copy_key_value_info( KEY_VALUE_INFORMATION_CLASS info_class, void *info,
 362                                  DWORD length, int type, int name_len, int data_len )
 363 {
 364     switch(info_class)
 365     {
 366     case KeyValueBasicInformation:
 367         {
 368             KEY_VALUE_BASIC_INFORMATION keyinfo;
 369             keyinfo.TitleIndex = 0;
 370             keyinfo.Type       = type;
 371             keyinfo.NameLength = name_len;
 372             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 373             memcpy( info, &keyinfo, length );
 374             break;
 375         }
 376     case KeyValueFullInformation:
 377         {
 378             KEY_VALUE_FULL_INFORMATION keyinfo;
 379             keyinfo.TitleIndex = 0;
 380             keyinfo.Type       = type;
 381             keyinfo.DataOffset = (char *)keyinfo.Name - (char *)&keyinfo + name_len;
 382             keyinfo.DataLength = data_len;
 383             keyinfo.NameLength = name_len;
 384             length = min( length, (char *)keyinfo.Name - (char *)&keyinfo );
 385             memcpy( info, &keyinfo, length );
 386             break;
 387         }
 388     case KeyValuePartialInformation:
 389         {
 390             KEY_VALUE_PARTIAL_INFORMATION keyinfo;
 391             keyinfo.TitleIndex = 0;
 392             keyinfo.Type       = type;
 393             keyinfo.DataLength = data_len;
 394             length = min( length, (char *)keyinfo.Data - (char *)&keyinfo );
 395             memcpy( info, &keyinfo, length );
 396             break;
 397         }
 398     default:
 399         break;
 400     }
 401 }
 402
 403
 404 /******************************************************************************
 405  *  NtEnumerateValueKey [NTDLL.@]
 406  *  ZwEnumerateValueKey [NTDLL.@]
 407  */
 408 NTSTATUS WINAPI NtEnumerateValueKey( HANDLE handle, ULONG index,
 409                                      KEY_VALUE_INFORMATION_CLASS info_class,
 410                                      void *info, DWORD length, DWORD *result_len )
 411 {
 412     NTSTATUS ret;
 413     void *ptr;
 414     size_t fixed_size;
 415
 416     TRACE( "(%p,%lu,%d,%p,%ld)\n", handle, index, info_class, info, length );
 417
 418     /* compute the length we want to retrieve */
 419     switch(info_class)
 420     {
 421     case KeyValueBasicInformation:   ptr = ((KEY_VALUE_BASIC_INFORMATION *)info)->Name; break;
 422     case KeyValueFullInformation:    ptr = ((KEY_VALUE_FULL_INFORMATION *)info)->Name; break;
 423     case KeyValuePartialInformation: ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data; break;
 424     default:
 425         FIXME( "Information class %d not implemented\n", info_class );
 426         return STATUS_INVALID_PARAMETER;
 427     }
 428     fixed_size = (char *)ptr - (char *)info;
 429
 430     SERVER_START_REQ( enum_key_value )
 431     {
 432         req->hkey       = handle;
 433         req->index      = index;
 434         req->info_class = info_class;
 435         if (length > fixed_size) wine_server_set_reply( req, ptr, length - fixed_size );
 436         if (!(ret = wine_server_call( req )))
 437         {
 438             copy_key_value_info( info_class, info, length, reply->type, reply->namelen,
 439                                  wine_server_reply_size(reply) - reply->namelen );
 440             *result_len = fixed_size + reply->total;
 441             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 442         }
 443     }
 444     SERVER_END_REQ;
 445     return ret;
 446 }
 447
 448
 449 /******************************************************************************
 450  * NtQueryValueKey [NTDLL.@]
 451  * ZwQueryValueKey [NTDLL.@]
 452  *
 453  * NOTES
 454  *  the name in the KeyValueInformation is never set
 455  */
 456 NTSTATUS WINAPI NtQueryValueKey( HANDLE handle, const UNICODE_STRING *name,
 457                                  KEY_VALUE_INFORMATION_CLASS info_class,
 458                                  void *info, DWORD length, DWORD *result_len )
 459 {
 460     NTSTATUS ret;
 461     UCHAR *data_ptr;
 462     unsigned int fixed_size = 0;
 463
 464     TRACE( "(%p,%s,%d,%p,%ld)\n", handle, debugstr_us(name), info_class, info, length );
 465
 466     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 467
 468     /* compute the length we want to retrieve */
 469     switch(info_class)
 470     {
 471     case KeyValueBasicInformation:
 472         fixed_size = (char *)((KEY_VALUE_BASIC_INFORMATION *)info)->Name - (char *)info;
 473         data_ptr = NULL;
 474         break;
 475     case KeyValueFullInformation:
 476         data_ptr = (UCHAR *)((KEY_VALUE_FULL_INFORMATION *)info)->Name;
 477         fixed_size = (char *)data_ptr - (char *)info;
 478         break;
 479     case KeyValuePartialInformation:
 480         data_ptr = ((KEY_VALUE_PARTIAL_INFORMATION *)info)->Data;
 481         fixed_size = (char *)data_ptr - (char *)info;
 482         break;
 483     default:
 484         FIXME( "Information class %d not implemented\n", info_class );
 485         return STATUS_INVALID_PARAMETER;
 486     }
 487
 488     SERVER_START_REQ( get_key_value )
 489     {
 490         req->hkey = handle;
 491         wine_server_add_data( req, name->Buffer, name->Length );
 492         if (length > fixed_size) wine_server_set_reply( req, data_ptr, length - fixed_size );
 493         if (!(ret = wine_server_call( req )))
 494         {
 495             copy_key_value_info( info_class, info, length, reply->type,
 496                                  0, wine_server_reply_size(reply) );
 497             *result_len = fixed_size + reply->total;
 498             if (length < *result_len) ret = STATUS_BUFFER_OVERFLOW;
 499         }
 500     }
 501     SERVER_END_REQ;
 502     return ret;
 503 }
 504
 505 /******************************************************************************
 506  * RtlpNtQueryValueKey [NTDLL.@]
 507  *
 508  */
 509 NTSTATUS WINAPI RtlpNtQueryValueKey( HANDLE handle, ULONG *result_type, PBYTE dest,
 510                                      DWORD *result_len )
 511 {
 512     KEY_VALUE_PARTIAL_INFORMATION *info;
 513     UNICODE_STRING name;
 514     NTSTATUS ret;
 515     DWORD dwResultLen;
 516     DWORD dwLen = sizeof (KEY_VALUE_PARTIAL_INFORMATION) + result_len ? *result_len : 0;
 517
 518     info = (KEY_VALUE_PARTIAL_INFORMATION*)RtlAllocateHeap( GetProcessHeap(), 0, dwLen );
 519     if (!info)
 520       return STATUS_NO_MEMORY;
 521
 522     name.Length = 0;
 523     ret = NtQueryValueKey( handle, &name, KeyValuePartialInformation, info, dwLen, &dwResultLen );
 524
 525     if (!ret || ret == STATUS_BUFFER_OVERFLOW)
 526     {
 527         if (result_len)
 528             *result_len = info->DataLength;
 529
 530         if (result_type)
 531             *result_type = info->Type;
 532
 533         if (ret != STATUS_BUFFER_OVERFLOW)
 534             memcpy( dest, info->Data, info->DataLength );
 535     }
 536
 537     RtlFreeHeap( GetProcessHeap(), 0, info );
 538     return ret;
 539 }
 540
 541 /******************************************************************************
 542  *  NtFlushKey  [NTDLL.@]
 543  *  ZwFlushKey  [NTDLL.@]
 544  */
 545 NTSTATUS WINAPI NtFlushKey(HANDLE key)
 546 {
 547     NTSTATUS ret;
 548
 549     TRACE("key=%p\n", key);
 550
 551     SERVER_START_REQ( flush_key )
 552     {
 553         req->hkey = key;
 554         ret = wine_server_call( req );
 555     }
 556     SERVER_END_REQ;
 557
 558     return ret;
 559 }
 560
 561 /******************************************************************************
 562  *  NtLoadKey   [NTDLL.@]
 563  *  ZwLoadKey   [NTDLL.@]
 564  */
 565 NTSTATUS WINAPI NtLoadKey( const OBJECT_ATTRIBUTES *attr, OBJECT_ATTRIBUTES *file )
 566 {
 567     NTSTATUS ret;
 568     HANDLE hive;
 569     IO_STATUS_BLOCK io;
 570
 571     TRACE("(%p,%p)\n", attr, file);
 572
 573     ret = NtCreateFile(&hive, GENERIC_READ, file, &io, NULL, FILE_ATTRIBUTE_NORMAL, 0,
 574                        OPEN_EXISTING, 0, NULL, 0);
 575     if (ret) return ret;
 576
 577     SERVER_START_REQ( load_registry )
 578     {
 579         req->hkey = attr->RootDirectory;
 580         req->file = hive;
 581         wine_server_add_data(req, attr->ObjectName->Buffer, attr->ObjectName->Length);
 582         ret = wine_server_call( req );
 583     }
 584     SERVER_END_REQ;
 585
 586     NtClose(hive);
 587
 588     return ret;
 589 }
 590
 591 /******************************************************************************
 592  *  NtNotifyChangeKey   [NTDLL.@]
 593  *  ZwNotifyChangeKey   [NTDLL.@]
 594  */
 595 NTSTATUS WINAPI NtNotifyChangeKey(
 596         IN HANDLE KeyHandle,
 597         IN HANDLE Event,
 598         IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
 599         IN PVOID ApcContext OPTIONAL,
 600         OUT PIO_STATUS_BLOCK IoStatusBlock,
 601         IN ULONG CompletionFilter,
 602         IN BOOLEAN Asynchronous,
 603         OUT PVOID ChangeBuffer,
 604         IN ULONG Length,
 605         IN BOOLEAN WatchSubtree)
 606 {
 607     NTSTATUS ret;
 608
 609     TRACE("(%p,%p,%p,%p,%p,0x%08lx, 0x%08x,%p,0x%08lx,0x%08x)\n",
 610         KeyHandle, Event, ApcRoutine, ApcContext, IoStatusBlock, CompletionFilter,
 611         Asynchronous, ChangeBuffer, Length, WatchSubtree);
 612
 613     if (ApcRoutine || ApcContext || ChangeBuffer || Length)
 614         FIXME("Unimplemented optional parameter\n");
 615
 616     if (!Asynchronous)
 617     {
 618         OBJECT_ATTRIBUTES attr;
 619         InitializeObjectAttributes( &attr, NULL, 0, NULL, NULL );
 620         ret = NtCreateEvent( &Event, EVENT_ALL_ACCESS, &attr, FALSE, FALSE );
 621         if (ret != STATUS_SUCCESS)
 622             return ret;
 623     }
 624
 625     SERVER_START_REQ( set_registry_notification )
 626     {
 627         req->hkey    = KeyHandle;
 628         req->event   = Event;
 629         req->subtree = WatchSubtree;
 630         req->filter  = CompletionFilter;
 631         ret = wine_server_call( req );
 632     }
 633     SERVER_END_REQ;
 634
 635     if (!Asynchronous)
 636     {
 637         if (ret == STATUS_SUCCESS)
 638             NtWaitForSingleObject( Event, FALSE, NULL );
 639         NtClose( Event );
 640     }
 641
 642     return STATUS_SUCCESS;
 643 }
 644
 645 /******************************************************************************
 646  * NtQueryMultipleValueKey [NTDLL]
 647  * ZwQueryMultipleValueKey
 648  */
 649
 650 NTSTATUS WINAPI NtQueryMultipleValueKey(
 651         HANDLE KeyHandle,
 652         PKEY_MULTIPLE_VALUE_INFORMATION ListOfValuesToQuery,
 653         ULONG NumberOfItems,
 654         PVOID MultipleValueInformation,
 655         ULONG Length,
 656         PULONG  ReturnLength)
 657 {
 658         FIXME("(%p,%p,0x%08lx,%p,0x%08lx,%p) stub!\n",
 659         KeyHandle, ListOfValuesToQuery, NumberOfItems, MultipleValueInformation,
 660         Length,ReturnLength);
 661         return STATUS_SUCCESS;
 662 }
 663
 664 /******************************************************************************
 665  * NtReplaceKey [NTDLL.@]
 666  * ZwReplaceKey [NTDLL.@]
 667  */
 668 NTSTATUS WINAPI NtReplaceKey(
 669         IN POBJECT_ATTRIBUTES ObjectAttributes,
 670         IN HANDLE Key,
 671         IN POBJECT_ATTRIBUTES ReplacedObjectAttributes)
 672 {
 673         FIXME("(%p),stub!\n", Key);
 674         dump_ObjectAttributes(ObjectAttributes);
 675         dump_ObjectAttributes(ReplacedObjectAttributes);
 676         return STATUS_SUCCESS;
 677 }
 678 /******************************************************************************
 679  * NtRestoreKey [NTDLL.@]
 680  * ZwRestoreKey [NTDLL.@]
 681  */
 682 NTSTATUS WINAPI NtRestoreKey(
 683         HANDLE KeyHandle,
 684         HANDLE FileHandle,
 685         ULONG RestoreFlags)
 686 {
 687         FIXME("(%p,%p,0x%08lx) stub\n",
 688         KeyHandle, FileHandle, RestoreFlags);
 689         return STATUS_SUCCESS;
 690 }
 691 /******************************************************************************
 692  * NtSaveKey [NTDLL.@]
 693  * ZwSaveKey [NTDLL.@]
 694  */
 695 NTSTATUS WINAPI NtSaveKey(IN HANDLE KeyHandle, IN HANDLE FileHandle)
 696 {
 697     NTSTATUS ret;
 698
 699     TRACE("(%p,%p)\n", KeyHandle, FileHandle);
 700
 701     SERVER_START_REQ( save_registry )
 702     {
 703         req->hkey = KeyHandle;
 704         req->file = FileHandle;
 705         ret = wine_server_call( req );
 706     }
 707     SERVER_END_REQ;
 708
 709     return ret;
 710 }
 711 /******************************************************************************
 712  * NtSetInformationKey [NTDLL.@]
 713  * ZwSetInformationKey [NTDLL.@]
 714  */
 715 NTSTATUS WINAPI NtSetInformationKey(
 716         IN HANDLE KeyHandle,
 717         IN const int KeyInformationClass,
 718         IN PVOID KeyInformation,
 719         IN ULONG KeyInformationLength)
 720 {
 721         FIXME("(%p,0x%08x,%p,0x%08lx) stub\n",
 722         KeyHandle, KeyInformationClass, KeyInformation, KeyInformationLength);
 723         return STATUS_SUCCESS;
 724 }
 725
 726
 727 /******************************************************************************
 728  * NtSetValueKey [NTDLL.@]
 729  * ZwSetValueKey [NTDLL.@]
 730  *
 731  * NOTES
 732  *   win95 does not care about count for REG_SZ and finds out the len by itself (js)
 733  *   NT does definitely care (aj)
 734  */
 735 NTSTATUS WINAPI NtSetValueKey( HANDLE hkey, const UNICODE_STRING *name, ULONG TitleIndex,
 736                                ULONG type, const void *data, ULONG count )
 737 {
 738     NTSTATUS ret;
 739
 740     TRACE( "(%p,%s,%ld,%p,%ld)\n", hkey, debugstr_us(name), type, data, count );
 741
 742     if (name->Length > MAX_NAME_LENGTH) return STATUS_BUFFER_OVERFLOW;
 743
 744     SERVER_START_REQ( set_key_value )
 745     {
 746         req->hkey    = hkey;
 747         req->type    = type;
 748         req->namelen = name->Length;
 749         wine_server_add_data( req, name->Buffer, name->Length );
 750         wine_server_add_data( req, data, count );
 751         ret = wine_server_call( req );
 752     }
 753     SERVER_END_REQ;
 754     return ret;
 755 }
 756
 757 /******************************************************************************
 758  * RtlpNtSetValueKey [NTDLL.@]
 759  *
 760  */
 761 NTSTATUS WINAPI RtlpNtSetValueKey( HANDLE hkey, ULONG type, const void *data,
 762                                    ULONG count )
 763 {
 764     UNICODE_STRING name;
 765
 766     name.Length = 0;
 767     return NtSetValueKey( hkey, &name, 0, type, data, count );
 768 }
 769
 770 /******************************************************************************
 771  * NtUnloadKey [NTDLL.@]
 772  * ZwUnloadKey [NTDLL.@]
 773  */
 774 NTSTATUS WINAPI NtUnloadKey(IN HANDLE KeyHandle)
 775 {
 776     NTSTATUS ret;
 777
 778     TRACE("(%p)\n", KeyHandle);
 779
 780     SERVER_START_REQ( unload_registry )
 781     {
 782         req->hkey  = KeyHandle;
 783         ret = wine_server_call(req);
 784     }
 785     SERVER_END_REQ;
 786
 787     return ret;
 788 }
 789
 790 /******************************************************************************
 791  *  RtlFormatCurrentUserKeyPath         [NTDLL.@]
 792  *
 793  */
 794 NTSTATUS WINAPI RtlFormatCurrentUserKeyPath( IN OUT PUNICODE_STRING KeyPath)
 795 {
 796     static const WCHAR pathW[] = {'\\','R','e','g','i','s','t','r','y','\\','U','s','e','r','\\'};
 797     HANDLE token;
 798     NTSTATUS status;
 799
 800     status = NtOpenThreadToken(GetCurrentThread(), TOKEN_READ, TRUE, &token);
 801     if (status == STATUS_NO_TOKEN)
 802         status = NtOpenProcessToken(GetCurrentProcess(), TOKEN_READ, &token);
 803     if (status == STATUS_SUCCESS)
 804     {
 805         char buffer[sizeof(TOKEN_USER) + sizeof(SID) + sizeof(DWORD)*SID_MAX_SUB_AUTHORITIES];
 806         DWORD len = sizeof(buffer);
 807
 808         status = NtQueryInformationToken(token, TokenUser, buffer, len, &len);
 809         if (status == STATUS_SUCCESS)
 810         {
 811             KeyPath->MaximumLength = 0;
 812             status = RtlConvertSidToUnicodeString(KeyPath, ((TOKEN_USER *)buffer)->User.Sid, FALSE);
 813             if (status == STATUS_BUFFER_OVERFLOW)
 814             {
 815                 PWCHAR buf = RtlAllocateHeap(GetProcessHeap(), 0,
 816                                              sizeof(pathW) + KeyPath->Length + sizeof(WCHAR));
 817                 if (buf)
 818                 {
 819                     memcpy(buf, pathW, sizeof(pathW));
 820                     KeyPath->MaximumLength = KeyPath->Length + sizeof(WCHAR);
 821                     KeyPath->Buffer = (PWCHAR)((LPBYTE)buf + sizeof(pathW));
 822                     status = RtlConvertSidToUnicodeString(KeyPath,
 823                                                           ((TOKEN_USER *)buffer)->User.Sid, FALSE);
 824                     KeyPath->Buffer = (PWCHAR)buf;
 825                     KeyPath->Length += sizeof(pathW);
 826                     KeyPath->MaximumLength += sizeof(pathW);
 827                 }
 828                 else
 829                     status = STATUS_NO_MEMORY;
 830             }
 831         }
 832         NtClose(token);
 833     }
 834     return status;
 835 }
 836
 837 /******************************************************************************
 838  *  RtlOpenCurrentUser          [NTDLL.@]
 839  *
 840  * if we return just HKEY_CURRENT_USER the advapi tries to find a remote
 841  * registry (odd handle) and fails
 842  *
 843  */
 844 DWORD WINAPI RtlOpenCurrentUser(
 845         IN ACCESS_MASK DesiredAccess, /* [in] */
 846         OUT PHANDLE KeyHandle)        /* [out] handle of HKEY_CURRENT_USER */
 847 {
 848         OBJECT_ATTRIBUTES ObjectAttributes;
 849         UNICODE_STRING ObjectName;
 850         NTSTATUS ret;
 851
 852         TRACE("(0x%08lx, %p)\n",DesiredAccess, KeyHandle);
 853
 854         RtlFormatCurrentUserKeyPath(&ObjectName);
 855         InitializeObjectAttributes(&ObjectAttributes,&ObjectName,OBJ_CASE_INSENSITIVE,0, NULL);
 856         ret = NtCreateKey(KeyHandle, DesiredAccess, &ObjectAttributes, 0, NULL, 0, NULL);
 857         RtlFreeUnicodeString(&ObjectName);
 858         return ret;
 859 }
 860
 861
 862 static NTSTATUS RTL_ReportRegistryValue(PKEY_VALUE_FULL_INFORMATION pInfo,
 863                                         PRTL_QUERY_REGISTRY_TABLE pQuery, PVOID pContext, PVOID pEnvironment)
 864 {
 865     PUNICODE_STRING str;
 866     UNICODE_STRING src, dst;
 867     LONG *bin;
 868     ULONG offset;
 869     PWSTR wstr;
 870     DWORD res;
 871     NTSTATUS status = STATUS_SUCCESS;
 872     ULONG len;
 873     LPWSTR String;
 874     INT count = 0;
 875
 876     if (pInfo == NULL)
 877     {
 878         if (pQuery->Flags & RTL_QUERY_REGISTRY_DIRECT)
 879             return STATUS_INVALID_PARAMETER;
 880         else
 881         {
 882             status = pQuery->QueryRoutine(pQuery->Name, pQuery->DefaultType, pQuery->DefaultData,
 883                                           pQuery->DefaultLength, pContext, pQuery->EntryContext);
 884         }
 885         return status;
 886     }
 887     len = pInfo->DataLength;
 888
 889     if (pQuery->Flags & RTL_QUERY_REGISTRY_DIRECT)
 890     {
 891         str = (PUNICODE_STRING)pQuery->EntryContext;
 892
 893         switch(pInfo->Type)
 894         {
 895         case REG_EXPAND_SZ:
 896             if (!(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND))
 897             {
 898                 RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 899                 res = 0;
 900                 dst.MaximumLength = 0;
 901                 RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 902                 dst.Length = 0;
 903                 dst.MaximumLength = res;
 904                 dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
 905                 RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 906                 status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
 907                                      dst.Length, pContext, pQuery->EntryContext);
 908                 RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
 909             }
 910
 911         case REG_SZ:
 912         case REG_LINK:
 913             if (str->Buffer == NULL)
 914                 RtlCreateUnicodeString(str, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 915             else
 916                 RtlAppendUnicodeToString(str, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 917             break;
 918
 919         case REG_MULTI_SZ:
 920             if (!(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND))
 921                 return STATUS_INVALID_PARAMETER;
 922
 923             if (str->Buffer == NULL)
 924             {
 925                 str->Buffer = RtlAllocateHeap(GetProcessHeap(), 0, len);
 926                 str->MaximumLength = len;
 927             }
 928             len = min(len, str->MaximumLength);
 929             memcpy(str->Buffer, ((CHAR*)pInfo) + pInfo->DataOffset, len);
 930             str->Length = len;
 931             break;
 932
 933         default:
 934             bin = (LONG*)pQuery->EntryContext;
 935             if (pInfo->DataLength <= sizeof(ULONG))
 936                 memcpy(bin, ((CHAR*)pInfo) + pInfo->DataOffset,
 937                     pInfo->DataLength);
 938             else
 939             {
 940                 if (bin[0] <= sizeof(ULONG))
 941                 {
 942                     memcpy(&bin[1], ((CHAR*)pInfo) + pInfo->DataOffset,
 943                     min(-bin[0], pInfo->DataLength));
 944                 }
 945                 else
 946                 {
 947                    len = min(bin[0], pInfo->DataLength);
 948                     bin[1] = len;
 949                     bin[2] = pInfo->Type;
 950                     memcpy(&bin[3], ((CHAR*)pInfo) + pInfo->DataOffset, len);
 951                 }
 952            }
 953            break;
 954         }
 955     }
 956     else
 957     {
 958         if((pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND) ||
 959            (pInfo->Type != REG_EXPAND_SZ && pInfo->Type != REG_MULTI_SZ))
 960         {
 961             status = pQuery->QueryRoutine(pInfo->Name, pInfo->Type,
 962                 ((CHAR*)pInfo) + pInfo->DataOffset, pInfo->DataLength,
 963                 pContext, pQuery->EntryContext);
 964         }
 965         else if (pInfo->Type == REG_EXPAND_SZ)
 966         {
 967             RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
 968             res = 0;
 969             dst.MaximumLength = 0;
 970             RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 971             dst.Length = 0;
 972             dst.MaximumLength = res;
 973             dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
 974             RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
 975             status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
 976                                           dst.Length, pContext, pQuery->EntryContext);
 977             RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
 978         }
 979         else /* REG_MULTI_SZ */
 980         {
 981             if(pQuery->Flags & RTL_QUERY_REGISTRY_NOEXPAND)
 982             {
 983                 for (offset = 0; offset <= pInfo->DataLength; offset += len + sizeof(WCHAR))
 984                     {
 985                     wstr = (WCHAR*)(((CHAR*)pInfo) + offset);
 986                     len = strlenW(wstr) * sizeof(WCHAR);
 987                     status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, wstr, len,
 988                         pContext, pQuery->EntryContext);
 989                     if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
 990                         return status;
 991                     }
 992             }
 993             else
 994             {
 995                 while(count<=pInfo->DataLength)
 996                 {
 997                     String = (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset)+count;
 998                     count+=strlenW(String)+1;
 999                     RtlInitUnicodeString(&src, (WCHAR*)(((CHAR*)pInfo) + pInfo->DataOffset));
1000                     res = 0;
1001                     dst.MaximumLength = 0;
1002                     RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1003                     dst.Length = 0;
1004                     dst.MaximumLength = res;
1005                     dst.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, res * sizeof(WCHAR));
1006                     RtlExpandEnvironmentStrings_U(pEnvironment, &src, &dst, &res);
1007                     status = pQuery->QueryRoutine(pQuery->Name, pInfo->Type, dst.Buffer,
1008                                                   dst.Length, pContext, pQuery->EntryContext);
1009                     RtlFreeHeap(GetProcessHeap(), 0, dst.Buffer);
1010                     if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1011                         return status;
1012                 }
1013             }
1014         }
1015     }
1016     return status;
1017 }
1018
1019
1020 static NTSTATUS RTL_GetKeyHandle(ULONG RelativeTo, PCWSTR Path, PHANDLE handle)
1021 {
1022     UNICODE_STRING KeyString;
1023     OBJECT_ATTRIBUTES regkey;
1024     PCWSTR base;
1025     INT len;
1026     NTSTATUS status;
1027
1028     static const WCHAR empty[] = {0};
1029     static const WCHAR control[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e',
1030     '\\','S','y','s','t','e','m','\\','C','u','r','r','e','n','t',' ','C','o','n','t','r','o','l','S','e','t','\\',
1031     'C','o','n','t','r','o','l','\\',0};
1032
1033     static const WCHAR devicemap[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1034     'H','a','r','d','w','a','r','e','\\','D','e','v','i','c','e','M','a','p','\\',0};
1035
1036     static const WCHAR services[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1037     'S','y','s','t','e','m','\\','C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
1038     'S','e','r','v','i','c','e','s','\\',0};
1039
1040     static const WCHAR user[] = {'\\','R','e','g','i','s','t','r','y','\\','U','s','e','r','\\',
1041     'C','u','r','r','e','n','t','U','s','e','r','\\',0};
1042
1043     static const WCHAR windows_nt[] = {'\\','R','e','g','i','s','t','r','y','\\','M','a','c','h','i','n','e','\\',
1044     'S','o','f','t','w','a','r','e','\\','M','i','c','r','o','s','o','f','t','\\',
1045     'W','i','n','d','o','w','s',' ','N','T','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',0};
1046
1047     switch (RelativeTo & 0xff)
1048     {
1049     case RTL_REGISTRY_ABSOLUTE:
1050         base = empty;
1051         break;
1052
1053     case RTL_REGISTRY_CONTROL:
1054         base = control;
1055         break;
1056
1057     case RTL_REGISTRY_DEVICEMAP:
1058         base = devicemap;
1059         break;
1060
1061     case RTL_REGISTRY_SERVICES:
1062         base = services;
1063         break;
1064
1065     case RTL_REGISTRY_USER:
1066         base = user;
1067         break;
1068
1069     case RTL_REGISTRY_WINDOWS_NT:
1070         base = windows_nt;
1071         break;
1072
1073     default:
1074         return STATUS_INVALID_PARAMETER;
1075     }
1076
1077     len = (strlenW(base) + strlenW(Path) + 1) * sizeof(WCHAR);
1078     KeyString.Buffer = RtlAllocateHeap(GetProcessHeap(), 0, len);
1079     if (KeyString.Buffer == NULL)
1080         return STATUS_NO_MEMORY;
1081
1082     strcpyW(KeyString.Buffer, base);
1083     strcatW(KeyString.Buffer, Path);
1084     KeyString.Length = len - sizeof(WCHAR);
1085     KeyString.MaximumLength = len;
1086     InitializeObjectAttributes(&regkey, &KeyString, OBJ_CASE_INSENSITIVE, NULL, NULL);
1087     status = NtOpenKey(handle, KEY_ALL_ACCESS, &regkey);
1088     RtlFreeHeap(GetProcessHeap(), 0, KeyString.Buffer);
1089     return status;
1090 }
1091
1092 /*************************************************************************
1093  * RtlQueryRegistryValues   [NTDLL.@]
1094  *
1095  * Query multiple registry values with a signle call.
1096  *
1097  * PARAMS
1098  *  RelativeTo  [I] Registry path that Path refers to
1099  *  Path        [I] Path to key
1100  *  QueryTable  [I] Table of key values to query
1101  *  Context     [I] Paremeter to pass to the application defined QueryRoutine function
1102  *  Environment [I] Optional parameter to use when performing expantion
1103  *
1104  * RETURNS
1105  *  STATUS_SUCCESS or an appropriate NTSTATUS error code.
1106  */
1107 NTSTATUS WINAPI RtlQueryRegistryValues(IN ULONG RelativeTo, IN PCWSTR Path,
1108                                        IN PRTL_QUERY_REGISTRY_TABLE QueryTable, IN PVOID Context,
1109                                        IN PVOID Environment OPTIONAL)
1110 {
1111     UNICODE_STRING Value;
1112     HANDLE handle, topkey;
1113     PKEY_VALUE_FULL_INFORMATION pInfo = NULL;
1114     ULONG len, buflen = 0;
1115     NTSTATUS status=STATUS_SUCCESS, ret = STATUS_SUCCESS;
1116     INT i;
1117
1118     TRACE("(%ld, %s, %p, %p, %p)\n", RelativeTo, debugstr_w(Path), QueryTable, Context, Environment);
1119
1120     if(Path == NULL)
1121         return STATUS_INVALID_PARAMETER;
1122
1123     /* get a valid handle */
1124     if (RelativeTo & RTL_REGISTRY_HANDLE)
1125         topkey = handle = (HANDLE)Path;
1126     else
1127     {
1128         status = RTL_GetKeyHandle(RelativeTo, Path, &topkey);
1129         handle = topkey;
1130     }
1131     if(status != STATUS_SUCCESS)
1132         return status;
1133
1134     /* Process query table entries */
1135     for (; QueryTable->QueryRoutine != NULL || QueryTable->Name != NULL; ++QueryTable)
1136     {
1137         if (QueryTable->Flags &
1138             (RTL_QUERY_REGISTRY_SUBKEY | RTL_QUERY_REGISTRY_TOPKEY))
1139         {
1140             /* topkey must be kept open just in case we will reuse it later */
1141             if (handle != topkey)
1142                 NtClose(handle);
1143
1144             if (QueryTable->Flags & RTL_QUERY_REGISTRY_SUBKEY)
1145             {
1146                 handle = 0;
1147                 status = RTL_GetKeyHandle((ULONG)QueryTable->Name, Path, &handle);
1148                 if(status != STATUS_SUCCESS)
1149                 {
1150                     ret = status;
1151                     goto out;
1152                 }
1153             }
1154             else
1155                 handle = topkey;
1156         }
1157
1158         if (QueryTable->Flags & RTL_QUERY_REGISTRY_NOVALUE)
1159         {
1160             QueryTable->QueryRoutine(QueryTable->Name, REG_NONE, NULL, 0,
1161                 Context, QueryTable->EntryContext);
1162             continue;
1163         }
1164
1165         if (!handle)
1166         {
1167             if (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED)
1168             {
1169                 ret = STATUS_OBJECT_NAME_NOT_FOUND;
1170                 goto out;
1171             }
1172             continue;
1173         }
1174
1175         if (QueryTable->Name == NULL)
1176         {
1177             if (QueryTable->Flags & RTL_QUERY_REGISTRY_DIRECT)
1178             {
1179                 ret = STATUS_INVALID_PARAMETER;
1180                 goto out;
1181             }
1182
1183             /* Report all subkeys */
1184             for (i = 0;; ++i)
1185             {
1186                 status = NtEnumerateValueKey(handle, i,
1187                     KeyValueFullInformation, pInfo, buflen, &len);
1188                 if (status == STATUS_NO_MORE_ENTRIES)
1189                     break;
1190                 if (status == STATUS_BUFFER_OVERFLOW ||
1191                     status == STATUS_BUFFER_TOO_SMALL)
1192                 {
1193                     buflen = len;
1194                     RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1195                     pInfo = (KEY_VALUE_FULL_INFORMATION*)RtlAllocateHeap(
1196                         GetProcessHeap(), 0, buflen);
1197                     NtEnumerateValueKey(handle, i, KeyValueFullInformation,
1198                         pInfo, buflen, &len);
1199                 }
1200
1201                 status = RTL_ReportRegistryValue(pInfo, QueryTable, Context, Environment);
1202                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1203                 {
1204                     ret = status;
1205                     goto out;
1206                 }
1207                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_DELETE)
1208                 {
1209                     RtlInitUnicodeString(&Value, pInfo->Name);
1210                     NtDeleteValueKey(handle, &Value);
1211                 }
1212             }
1213
1214             if (i == 0  && (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED))
1215             {
1216                 ret = STATUS_OBJECT_NAME_NOT_FOUND;
1217                 goto out;
1218             }
1219         }
1220         else
1221         {
1222             RtlInitUnicodeString(&Value, QueryTable->Name);
1223             status = NtQueryValueKey(handle, &Value, KeyValueFullInformation,
1224                 pInfo, buflen, &len);
1225             if (status == STATUS_BUFFER_OVERFLOW ||
1226                 status == STATUS_BUFFER_TOO_SMALL)
1227             {
1228                 buflen = len;
1229                 RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1230                 pInfo = (KEY_VALUE_FULL_INFORMATION*)RtlAllocateHeap(
1231                     GetProcessHeap(), 0, buflen);
1232                 status = NtQueryValueKey(handle, &Value,
1233                     KeyValueFullInformation, pInfo, buflen, &len);
1234             }
1235             if (status != STATUS_SUCCESS)
1236             {
1237                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_REQUIRED)
1238                 {
1239                     ret = STATUS_OBJECT_NAME_NOT_FOUND;
1240                     goto out;
1241                 }
1242                 status = RTL_ReportRegistryValue(NULL, QueryTable, Context, Environment);
1243                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1244                 {
1245                     ret = status;
1246                     goto out;
1247                 }
1248             }
1249             else
1250             {
1251                 status = RTL_ReportRegistryValue(pInfo, QueryTable, Context, Environment);
1252                 if(status != STATUS_SUCCESS && status != STATUS_BUFFER_TOO_SMALL)
1253                 {
1254                     ret = status;
1255                     goto out;
1256                 }
1257                 if (QueryTable->Flags & RTL_QUERY_REGISTRY_DELETE)
1258                     NtDeleteValueKey(handle, &Value);
1259             }
1260         }
1261     }
1262
1263 out:
1264     RtlFreeHeap(GetProcessHeap(), 0, pInfo);
1265     if (handle != topkey)
1266         NtClose(handle);
1267     NtClose(topkey);
1268     return ret;
1269 }
1270
1271 /*************************************************************************
1272  * RtlCheckRegistryKey   [NTDLL.@]
1273  *
1274  * Query multiple registry values with a signle call.
1275  *
1276  * PARAMS
1277  *  RelativeTo [I] Registry path that Path refers to
1278  *  Path       [I] Path to key
1279  *
1280  * RETURNS
1281  *  STATUS_SUCCESS if the specified key exists, or an NTSTATUS error code.
1282  */
1283 NTSTATUS WINAPI RtlCheckRegistryKey(IN ULONG RelativeTo, IN PWSTR Path)
1284 {
1285     HANDLE handle;
1286     NTSTATUS status;
1287
1288     TRACE("(%ld, %s)\n", RelativeTo, debugstr_w(Path));
1289
1290     if((!RelativeTo) && Path == NULL)
1291         return STATUS_OBJECT_PATH_SYNTAX_BAD;
1292     if(RelativeTo & RTL_REGISTRY_HANDLE)
1293         return STATUS_SUCCESS;
1294
1295     status = RTL_GetKeyHandle(RelativeTo, Path, &handle);
1296     if (handle) NtClose(handle);
1297     if (status == STATUS_INVALID_HANDLE) status = STATUS_OBJECT_NAME_NOT_FOUND;
1298     return status;
1299 }
1300
1301 /*************************************************************************
1302  * RtlDeleteRegistryValue   [NTDLL.@]
1303  *
1304  * Query multiple registry values with a signle call.
1305  *
1306  * PARAMS
1307  *  RelativeTo [I] Registry path that Path refers to
1308  *  Path       [I] Path to key
1309  *  ValueName  [I] Name of the value to delete
1310  *
1311  * RETURNS
1312  *  STATUS_SUCCESS if the specified key is successfully deleted, or an NTSTATUS error code.
1313  */
1314 NTSTATUS WINAPI RtlDeleteRegistryValue(IN ULONG RelativeTo, IN PCWSTR Path, IN PCWSTR ValueName)
1315 {
1316     NTSTATUS status;
1317     HANDLE handle;
1318     UNICODE_STRING Value;
1319
1320     TRACE("(%ld, %s, %s)\n", RelativeTo, debugstr_w(Path), debugstr_w(ValueName));
1321
1322     RtlInitUnicodeString(&Value, ValueName);
1323     if(RelativeTo == RTL_REGISTRY_HANDLE)
1324     {
1325         return NtDeleteValueKey((HANDLE)Path, &Value);
1326     }
1327     status = RTL_GetKeyHandle(RelativeTo, Path, &handle);
1328     if (status) return status;
1329     status = NtDeleteValueKey(handle, &Value);
1330     NtClose(handle);
1331     return status;
1332 }